A tool for dismounting and mounting an inner ring of a cylinder head

Abstract

This utility model discloses a tool for disassembling and assembling the inner ring of a hydraulic cylinder head, belonging to the field of inner ring disassembly and assembly technology. It includes a first arm and a second arm, with the second arm positioned on one side of the first arm. A support adjustment box is located above the first and second arms, and a support mechanism is installed inside the support adjustment box. A support execution mechanism is located on one side of the first and second arms, and the support execution mechanism includes support hooks. Two support hooks are respectively located on opposite sides of the first and second arms. Tension springs are fixed between the first arm and the support hooks, and between the second arm and the support hooks. Through the configuration of the first arm, second arm, support mechanism, and support execution mechanism, and the linkage design of the adjustment knob, adjustment screw, and adjustment slider, this utility model can flexibly adjust the gap between the first and second arms, precisely adapting to the sidewalls of hydraulic cylinder heads of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of inner ring disassembly and assembly technology, specifically a tool for disassembling and assembling the inner ring of a cylinder head. Background Technology

[0002] In the field of hydraulic machinery, the cylinder is the core component for energy conversion and power transmission. Its assembly accuracy and reliability directly affect the operating performance of the equipment. The inner ring of the cylinder head is a key component for cylinder sealing and structural stability. During equipment maintenance and production assembly, the installation and disassembly of the inner ring are frequently involved. With the standardization and large-scale development of industrial production, cylinders of different models and specifications are widely used in many fields such as engineering machinery, agricultural machinery, and automobile manufacturing. Currently, most common cylinder head inner ring disassembly and assembly tools on the market are simple manual tools, such as pry bars and pliers. These tools require operators with high skill and physical strength, and it's difficult to pre-position specific parts of the rubber inner ring during installation. This leads to the loosening of parts already fitted onto the cylinder head ring when stretching and fitting other parts of the rubber inner ring, making single-person installation of the rubber inner ring quite difficult. During disassembly, existing tools cannot effectively restrain the rubber inner ring, resulting in frequent ejection and significant safety hazards. Furthermore, the scattered inner ring after disassembly hinders subsequent reassembly and use on the cylinder head. Therefore, a new cylinder head inner ring disassembly and assembly tool is needed to solve the problems existing in the current technology. Utility Model Content

[0003] The purpose of this utility model is to provide a tool for disassembling and assembling the inner ring of a cylinder head, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cylinder head inner ring disassembly and assembly tool, comprising a first arm and a second arm, the second arm being disposed on one side of the first arm, a support adjustment box being disposed above the first arm and the second arm, a support mechanism being disposed inside the support adjustment box, a support execution mechanism being disposed on one side of the first arm and the second arm, the support execution mechanism comprising a support hook, two support hooks being disposed on opposite sides of the first arm and the second arm, and tension springs being fixed between the first arm and the support hook, and between the second arm and the support hook.

[0005] Preferably, two horizontal guide rods are fixed at the top and bottom positions on one side surface of the first arm and the second arm, the expansion hook is slidably sleeved on the outside of the horizontal guide rods, and a horizontal guide groove is opened on one side surface of the expansion hook to slide and match the horizontal guide rods.

[0006] Preferably, the expansion mechanism includes two adjusting sliders, which are respectively fixed to the upper ends of the first and second arms, and the expansion adjustment box is rotatably connected to an adjusting screw.

[0007] Preferably, the surface of the adjusting screw is symmetrically provided with bidirectional helical threads, and the two adjusting sliders are threadedly connected to the bidirectional helical threads of the adjusting screw, and the two adjusting sliders are slidably connected inside the expansion adjustment box.

[0008] Preferably, an adjustment port is provided on one side surface of the expansion adjustment box, and an adjustment knob is rotatably connected inside the adjustment port. The adjustment knob is sleeved and fixed outside the adjustment screw.

[0009] Preferably, a lifting handle is fixed to the upper end of the expansion adjustment box.

[0010] This utility model provides a tool for disassembling and assembling the inner ring of a hydraulic cylinder head, which has the following advantages compared with the prior art: By setting up a first arm, a second arm, a support mechanism, and a support execution mechanism, and through the linkage design of the adjustment knob, the adjustment screw, and the adjustment slider, the gap between the first arm and the second arm can be flexibly adjusted, which can accurately adapt to the side wall of the cylinder head of different specifications, greatly improving the versatility and applicability of the tool. During installation, the support hooks expand and position the rubber inner ring on both sides, allowing operators to easily slip it onto the outside of the cylinder head protrusion ring by manually opening the rubber inner ring in the other two directions. This effectively simplifies the installation process, reduces installation difficulty, and improves installation efficiency. During disassembly, the support hook rests on the outside of the cylinder head protrusion ring, and together with the lifting handle, the rubber inner ring can be easily removed. At the same time, the support hook prevents the rubber inner ring from being ejected during disassembly, eliminating safety hazards. Furthermore, the disassembled rubber inner ring remains on the support hook for easy collection and processing, thus improving the safety and convenience of disassembly. The tension spring allows the extension hook to be slightly adjustable, accommodating convex rings of different thicknesses on the cylinder head. This not only facilitates the installation of the rubber inner ring onto the extension hook during disassembly but also maintains stable support for the rubber inner ring during use, further enhancing the tool's practicality and operational flexibility. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the expansion and adjustment box of this utility model; Figure 3 This is a perspective view of the first support arm structure of this utility model; Figure 4This is a three-dimensional view of the support hook structure of this utility model.

[0012] In the diagram: 1. First arm; 2. Second arm; 3. Extension adjustment box; 4. Extension mechanism; 5. Adjustment slider; 6. Adjustment screw; 7. Adjustment port; 8. Adjustment knob; 9. Lifting handle; 10. Extension actuator; 11. Extension hook; 12. Horizontal guide rod; 13. Tension spring; 14. Horizontal guide groove. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a tool for disassembling and assembling the inner ring of a cylinder head, including a first support arm 1 and a second support arm 2. The second support arm 2 is disposed on one side of the first support arm 1. A support adjustment box 3 is disposed above the first support arm 1 and the second support arm 2. A support mechanism 4 is disposed inside the support adjustment box 3. A support execution mechanism 10 is disposed on one side of the first support arm 1 and the second support arm 2. The support execution mechanism 10 includes a support hook 11. Two support hooks 11 are respectively disposed on opposite sides of the first support arm 1 and the second support arm 2. A tension spring 13 is fixed between the first support arm 1 and the support hook 11, and between the second support arm 2 and the support hook 11. Two horizontal guide rods 12 are fixed at the top and bottom positions on one side surface of the first support arm 1 and the second support arm 2. The support hook 11 is slidably sleeved on the outside of the horizontal guide rod 12. A horizontal guide groove 14 is opened on one side surface of the support hook 11 to slide and match the horizontal guide rod 12. After the first arm 1 and the second arm 2 are firmly supported on the inner wall of the cylinder head, the two ends of the rubber inner ring are hooked onto the extension hooks 11 to achieve bidirectional tension and fixation. At this time, the operator can easily unfold the other two sides of the rubber inner ring and fit it into the cylinder head convex ring. Due to the positioning effect of the hooks, the rubber inner ring remains stable during installation, effectively reducing the installation difficulty and avoiding slippage and displacement. When it is necessary to disassemble the rubber inner ring, the first and second arms are also unfolded and supported on the inner wall of the cylinder head, ensuring that the extension hooks 11 are located on the outside of the convex ring. The rubber inner ring is pulled open diagonally and hooked onto the extension hooks 11. Then, the lifting handle 9 can be pulled to complete the disassembly. During this process, the tension spring 13 gives the extension hooks 11 adaptive adjustment capability, which can match the convex ring structure of different thicknesses. At the same time, it effectively avoids the risk of ejection caused by excessive stretching of the rubber inner ring in the traditional disassembly method, ensuring operational safety and disassembly efficiency.

[0015] Further as Figure 3 As shown, it is worth noting that the support mechanism 4 includes two adjusting sliders 5, which are fixed to the upper ends of the first support arm 1 and the second support arm 2 respectively. The inside of the support adjustment box 3 is rotatably connected to an adjusting screw 6. The surface of the adjusting screw 6 is symmetrically provided with bidirectional spiral threads. The two adjusting sliders 5 are threadedly connected to the bidirectional spiral threads of the adjusting screw 6. The two adjusting sliders 5 are slidably connected inside the support adjustment box 3. An adjustment port 7 is opened on one side surface of the support adjustment box 3. An adjustment knob 8 is rotatably connected inside the adjustment port 7. The adjustment knob 8 is sleeved and fixed to the outside of the adjusting screw 6. By rotating the adjustment knob 8 on the extension adjustment box 3, the internal adjustment screw 6 is driven to rotate. Based on the bidirectional spiral structure on the surface of the adjustment screw 6, the two adjustment sliders 5 that are threaded with it can slide in opposite directions, thereby accurately adjusting the distance between the first support arm 1 and the second support arm 2. This design can flexibly adapt to the inner wall size of different specifications of cylinder heads, and provide stable support for the subsequent stretching and positioning of the rubber inner ring on the extension hook 11.

[0016] Further as Figure 1 As shown, it is worth noting that the upper end of the expansion adjustment box 3 is fixed with a lifting handle 9.

[0017] The solution has the following working process: Before use, rotate the adjustment knob 8 from the adjustment port 7 of the extension adjustment box 3 to drive the adjustment screw 6 to rotate inside the extension adjustment box 3. Since the surface of the adjustment screw 6 is symmetrically provided with bidirectional spiral threads, the two adjustment sliders 5 that are threadedly connected to the adjustment screw 6 can move closer or further away from each other. The adjustable gap between the first support arm 1 and the second support arm 2 can be adapted to support the side wall of the cylinder head of different specifications, thereby providing support for the subsequent stretching and extension of the rubber inner ring on the two extension hooks 11. During installation, the first arm 1 and the second arm 2 are supported on the inner wall of the cylinder head. At this time, the rubber inner ring hanging on the two extension hooks 11 is extended on both sides. After the rubber inner ring is stretched and positioned in two directions, it is convenient for the operator to manually apply force to open the rubber inner ring in the other two directions and put it on the outside of the convex ring of the cylinder head. During the process of putting the rubber inner ring on, the rubber inner ring positioned by the two extension hooks 11 is not easy to loosen, thereby reducing the difficulty of installing the rubber inner ring. During disassembly, the first arm 1 and the second arm 2 are extended and supported on the inner wall of the cylinder head. At this time, the extension hook 11 is set on the outside of the cylinder head convex ring. Then, the rubber inner ring is pulled open in two opposite directions and hooked onto the two extension hooks 11. Then, the lifting handle 9 on the extension adjustment box 3 can be pulled to remove the rubber inner ring from the cylinder head. During the removal operation, the disassembled rubber inner ring remains on the extension hook 11 under the extension action of the extension hook 11, which reduces the safety hazard of the rubber inner ring being ejected due to the stretching and disassembly of the traditional disassembly method. During use, the extension hook 11 has the ability to adjust its position slightly under the action of the tension spring 13. In this way, the extension hook 11 can adapt to the convex ring of different thicknesses of the cylinder head and facilitates the assembly of the rubber inner ring onto the extension hook 11 during disassembly.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool for dismounting and mounting a cylinder head inner ring, characterized in that: It includes a first arm (1) and a second arm (2). The second arm (2) is located on one side of the first arm (1). A support adjustment box (3) is located above the first arm (1) and the second arm (2). A support mechanism (4) is located inside the support adjustment box (3). A support execution mechanism (10) is located on one side of the first arm (1) and the second arm (2). The support execution mechanism (10) includes a support hook (11). The two support hooks (11) are located on opposite sides of the first arm (1) and the second arm (2). A tension spring (13) is fixed between the first arm (1) and the support hook (11) and between the second arm (2) and the support hook (11).

2. The tool of claim 1, wherein: Two horizontal guide rods (12) are fixed at the top and bottom positions on one side surface of the first support arm (1) and the second support arm (2). The expansion hook (11) is slidably sleeved on the outside of the horizontal guide rod (12). A horizontal guide groove (14) matching the sliding of the horizontal guide rod (12) is opened on one side surface of the expansion hook (11).

3. The tool of claim 1 wherein: The support mechanism (4) includes two adjustment sliders (5), which are fixed to the upper ends of the first arm (1) and the second arm (2) respectively. The support adjustment box (3) is rotatably connected to an adjustment screw (6).

4. The tool of claim 3, wherein: The adjustment screw (6) has a bidirectional spiral pattern symmetrically arranged on its surface. The two adjustment sliders (5) are threadedly connected to the bidirectional spiral pattern of the adjustment screw (6). The two adjustment sliders (5) are slidably connected inside the expansion adjustment box (3).

5. The tool of claim 4 wherein: An adjustment port (7) is provided on one side surface of the expansion adjustment box (3), and an adjustment knob (8) is rotatably connected inside the adjustment port (7). The adjustment knob (8) is sleeved and fixed outside the adjustment screw (6).

6. The tool of claim 1 wherein: The upper end of the expansion adjustment box (3) is fixed with a lifting handle (9).

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